i have a forum site about books. and i have about 1,000 unique hits (Us, Uk and Canada) per day. which program should i use? pay per sale / ppc / pay per lead .
If you want to start small, it would be best to go into paid traffic when your site is already earning organically. I would not recommend paid traffic sources until you work out your primary monetization strategies and are able to optimize conversions. That way you could invest part of your site's income into your campaign. PPC is very expensive and it is expected that you will lose money at the start.
I think it depends on your niche and traffic quality. You can easily split test them and see which one performs best. All the best
I think result varies with site to site. Depending on your niche profit varies. You should test one by one and find out which is best for you.